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IO-Link 4-Port Master Module – Multi-Port Master for Your IO-Link Application

The IO-Link 4-Port Master Module includes a complete IO-Link Master and can be easily integrated into existing systems. The IO-Link Single-Port Master Module can be addressed using simple commands via SPI/USB or UART interfaces. The control telegrams are based on the IO-Link Master Test Interface, as listed in the IO-Link Test Specification. The module can be controlled either via the TEConcept Control Tool (see USB Master) or via self-written telegrams. For example, a one-time complex configuration of IO-Link devices can be performed using the PC tool (via USB), and process data can be exchanged directly via SPI or UART. The IO-Link Master Module can be plugged onto an existing board. For development purposes, a baseboard with various interfaces is available. Upon request, we develop customized applications for the 4-Port Master, which can be used to build small and cost-effective special control systems.

Would you like to integrate IO-Link master functionality directly into your hardware?

Our Master Modules deliver fully tested, IO-Link-compliant master functionality in a compact PCB format — communicating via SPI or UART, ready for OEM series production.

Product Datasheet

IO-Link 4-Port Master Module Features

Compatible with V1.1 IO-Link Specification
IO-Link V1.1 compatible stack
IO-Link transceiver with protection circuit integrated
L+ supply voltage for device is switchable
SPI / UART interface for easy master control
USB interface for master control using the TEConcept PC control tool
Dimensions: 59mm x 33 mm

IO-Link 4-Port Master Modul Basic-Board Features

24V supply voltage connection
DB-9 connector for serial interface
Supply voltage generation for IO-Link Master Module
M12 IO-Link connector

Typical Applications for the 4-Port Master Module

Seamless integration of IO-Link devices into machine control without PLC.
Setup of simple control systems with IO-Link sensors and actuators.

Advantages of the 4-Port Master Module

Reduced development effort
Compliant IO-Link Master Stack integrated into the module
Easy control

IO-Link Master Module, IO-Link USB-C Master or IO-Link Master Stack?

All three solutions offer IO-Link Master functionality — but differ fundamentally in their application scenarios.

The USB-C Master is designed for PC-based use in development and service: it is powered directly via USB-C, requires no external power supply, and comes with a complete Windows GUI. The IO-Link Master Module, on the other hand, is a compact PCB unit for direct integration into your own hardware — it communicates with the host system via SPI or UART and is designed for OEM use in series production. The IO-Link Master Stack goes a step further: it is not hardware, but a licensable software component that integrates IO-Link Master functionality directly into your own host platform — for example, into a gateway, a PLC, or an embedded system. This allows for maximum flexibility in hardware selection but requires corresponding development resources for integration.

For development, testing, and service in the lab or field, the USB-C Master is the right choice. If a product goes into series production, depending on the approach, the Master Module as a ready-made hardware component or the Master Stack as a software integration are suitable.